The 2023–2025 global coral bleaching event has become the most extensive in recorded history, with approximately 84% of the world’s coral reefs affected. This unprecedented event, announced by the International Coral Reef Initiative in April 2025, surpasses the previous 2014–2017 bleaching event, which impacted roughly two-thirds of global reefs. The bleaching is primarily attributed to elevated ocean temperatures exacerbated by anthropogenic climate change. Regions such as the Florida Keys and the Great Barrier Reef have experienced severe coral die-offs, with some areas reporting up to 93% mortality rates. The ongoing nature of this event raises concerns about the long-term health of marine ecosystems and the communities that depend on them. Experts emphasize the need for urgent global action to mitigate climate change and protect these vital ecosystems.​